Engraving-machine.



W. H. HOPE.v ENGRAVINGMACHINE. APPLICATION FILED WW II. I917- Patented Apr. 23, 1918.

2 SHEE1S-SHEETIQ iNVENTEIR.

ATTORNEY.

w. H. HOPE. ENGRAVING MACHINE. APPLICATION FILED JULY II. 1917 LQM UWIQ Iatented Apr. 23,1918.

2 SHEETS-SHEET 2- INVENTEIR'. M

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' To all whom may mm.- 3

' The inventionresides 1n of a design carrying sheet or strip to a print i WILLrA M H. here, or 'rnovrniancnynnopn Ism ito.

p ieRAvme-MiicHr Specification of Letters Patent;

" Application tiled a l iiueir, swimwear.

Be it known that "LWVI'LLIAiZt "Horn; a' citizen ofjthe. United States, residing at Providence, inthe county of Providence and State of Rhode Island, have invented a new and useful Improvement in Engravingdilachines, of which the followingis a specification. I This inventionlrelates to certainnew and useful improvements in an engravinginachine, and'it'hasgfor its purpose to provide an improved machine bywhich a designer p'attern may be transferred to printing rolls for subsequent'etching by theapphcation of acidto the desired depth,

attaching one end roll and passing the opposite end over a supporting roll for being traced by a stylus which is connected toto ne or more cutters forltransferring the designto theprinting rol The "invention "further resides [in the improved cutter and stylus mechanism in which the cutters are moved relative to each other through the manipulation of the sty- 111s, and also raised from the printing roll upon the liftingofthe stylus from the design bearing member.

Further-{the invention is found in the features of construction, and the arrange- 1 ments and combinations of parts hereinafter machine.

described andcl'aimed, reference beinghad to theaccompanymg drawings wherein Figure 1"is aside elevation of the improved machine.

Fig. 2 is a front elevation thereof. V Fig. 3 is planjview of'a design carrying strip 'sed in the operation ofthe present Fig; 4 is a top plan view of the engraving machine.

Fig. depicts in enlarged end elevation the cutter mechanism with the cutters and stylusoperatively related, and i i Fig. '6" is a vertical section through the cutter mechanism.

Referring more lindetail to the accompanying drawings, the numeralil designates a supporting frame structure which isprovided with journal bearings. for the shafts i 2 and 3 of the printing roll 4 and d s gn supportingroll 5, respectively. V e e i *The pattern or design is produced on a transparent strip 6, as depicted in Fig. 3, the s m sere e i le t re t e t on The numeral 10 des gnates port that is mounted on the frame 1 bemay, conveniently be painted, drawn, or otherwise applied to transparent material itllCllS secured at one end to theprinting rolland is then passed over the supporting reamed iapeaagieie.

Qposite sides and also :toits ends. The design roll 5, a weight Tbeingattachedto the-free :9

end to maintain the strip under tension as same over the supporting-roll when the printing roll is rotatedin itsbearings. The means providedfor attaching an end of the well a s to provide a ,meansfor pul'ling the i strip to theprinting roll comprises a .plu-.

.,rality ofpins 8 which are passed through perforations 9, formed in'each endof said strip to 'detachably secure the same to said roll. a By'removing the pins and reversing) a the endsof the strip and turning the latter 1 I over, and resecuring the strip to said roll a different arrangement of the design may be procured.

In the prmting of rugsfand similar floor coverings or hangings, such as curtains, the

design is printed on long strips and. after ward cut or separated into proper or desired lengths. Therefore,.in suchprinting ablank the. rug designs and properly binding. the rug ends. Consequently. the printing'rolls are cut'to leave the required blank space in which the pins 8 are arranged.

a 7 track I supspace is left for the purpose of separating.

tween the rolls, said track preferably having initsupper surface with agrooved track .of narrower gage to receive the wheels 13' which constitute a carriage for the upper rack bar 14:. The rack barshave opposing racks with which meshan interposedpinion wardly from the track support 10..

1.5 that is journalecl in arm 16 extending up A cutter support]? is adjustahly connected to the upper rackbar through the interinediary of a-T-bolt 18 engaging in a like shaped groove19 formed inthe upper face of said bar, and masimilar manner a secs 0nd cutter support 20 is adjustablyw-secured a to the front face of the lowerrackbar, the second support being e'xtendedup. and over the upper rack bar in right angular fornnas depicted in Fig. 5. A cutter arrnfllis piv-r s ed t t fr e. e at hs-ut er s ppo t 0n the roll;

and carries the point '22 on its outer end for operating on the printing roll. A curved lever arm 23 is fixed oneach cutter arm and extends over the upper rack bar and terminates in a horizontally disposed bar 24,;said bars being posed relation in front of the rack bars.

The stylus arm 25 is' pivoted to the forward edge of the lower rack bar and carries on'its outer end the'point 26 fortracing the design as it "passes over the supporting roll,

5 suitable handles 27 being provided for properly manipulatingthe stylus. N ear the pivotal mounting, the stylusarm is provided witlranupstanding lever arm 28 which engages the bars 24 and depresses them, when the stylus arm. is lifted to'eflect a removal 'of the outtersfrom the printing roll.

In operatiomthe design carrying strip is attached atone end to the printing roll and carried under the same and over the supporting roll 5, said printing roll being so disposed as to have the pins 8 initially arranged adjacent the cutters. The operative now traces'the design with the stylus and,

. through the intervening mechanism, causes the cutters to operate on the printingroll. If its cutters are not properly related, adjustment may individually be effected or si- 'multaneously, the stylus being raised to lift the cutters from the roll during such adjustment. I

As-the' operation proceeds, the printing roll is rotated to present a new portion of the design strip and a fresh portion of said roll. This rotative motion is imparted to the printing roll through the instrumentality of a ratchet 29, fixed on shaft 2, and a pawl 30 pivoted to the latter through lever 31, a treadle 32 being conveniently positioned to the operative.

' After the design has been traced, the parts are related as shown in Fig. 1. The strip may now be turned over and the opposite end'f'astene'd to the roll and the operation continued until the complete design is cut This gives the ornamentation for the sides of the rug, At this point the design forming the center of exactly the same-length and but half in length is at ta'ch'edto the roll'as described for the sides. The two 'cutt'e'rs are then movedto a more c'e1'1tra'lpos1tion on the rack bars and the cutting operation*proceeded with. Y After the design has been cut on the roll, the usual etching process is followed. Of course, it is possible that with suitable structure one-half the width of the design strip or sheet may'be ca'rried as well as one-half the length. thereby permitting the forming of one-half the design.

Having thus "described my invention, what claim as new and, desiret'o secure Lettars Patent is-' i 4 '1; an engraving machine, a frame con arranged in super- 7 lever and provided with a track on its upper face,

wheels on the latter track, an upper rack bar supported on the second wheels, an interposed pinion journaled on the frame between the rack parts of the bars for moving the same in opposite directions, a support adjustable on each bar, a cutter arm pivoted to each support for operating on the printing roll, a stylus arm pivoted on the lower rack bar and extending over the supporting roll, said stylus arm having an upstanding arm, and a cooperating lever arm can ried by each cutter arln and including a hori- Zontal bar part against which the upstanding lever arm moves on lifting the stylus arm to effect a lifting of the cutter arms from the printing roll.

2. In a direct engraving machine, a frame constructed operatively to support a printing roll, a design supporting roll, means connect ing the same to the printing roll for simultaneous movement therewith, a pair of rack bars,'a connecting pinion arranged between the bars for effecting reverse movements thereof, a cutter support carried by each rack bar, a cutter arm pivoted to each support, a stylus arm pivoted to one of the rack bars for movement over the design supporting roll, a lever arm on each cutter arm having a horizontal bar part extending alongside the rack bars and above the stylus arm, and carried by the latter for engaging the bar parts of the lever arms to elevate the cutter arms on raising the stylus arm.

3. In a direct engraving machine, a frame constructed operatively to support a printing roll, a design carrying member, a. plurality of cutters, means supporting each cutter including a rack bar, a pinion arranged between the rack bars to efi'cct movement of the bars in opposite directions,a stylus movably connected with one of the racltbars for operating over the design carrying member, and means connecting the stylus to the cutters whereby on lifting the former from the design carryingmember the latter will be elevated from the printing roll.

I 4. In a direct engraving machine, a frame constructed operatively to support a printing member, a design carrying member, a plurality of cutters for operating on the printing member, a stylus operable on the design carrying member, means for moving the cutters toward and from each other on movement of the stylus, and means for removing the cutters from the printing member on lifting the stylus fromthe design carrying memher. I a I v 5. Ina direct engraving machine, a frame constructed operatively. to support a printing roll, a supporting roll, a de sign carrying member attached at one end'to the printing roll and passing over the supporting roll, operatively connected to the stylus for cutting the designs on the prlnt roll by tracing I the stylus on the design carrying member as 7 ing roll,a supporting roll, adesign sheet detachably secured at one end to the printing the latter'passes over the supporting roll.

6. In a direct engraving machine, a frame constructed operatively to support a printroll and having its opposite end portion a passing over the supporting roll, a cutter operable on the printing roll, and a stylus operatively connected to'thecutter fortracing the design as the sheet passes over the supporting roll.

v7. In an engraving machine having means for transferring designs to print rolls, a design carrying strip having means at each end for selectively attaching either end to the printing roll.

8. In an engraving machine having means 7 for transferring designs to print rolls, a design carrying strip having its ends perforated, and pins insertible through the strip perforations for securing either end thereof to the roll.

9 Inan engraving machine, a design carrying member, a pair of cutters for operating on a roll, means for operatively supporting the cutters, a stylus cooperating with the design carrying member, and means connecting the latter to the cutters including means for movingthe cutters toward and from each other in'a direction parallelto the axis of the roll by and during movement of the stylus.

10. In a direct engraving machine, a frame constructed operatively to support a printing roll, a design carrying member, a pairof rack bars, an interposed pinion connecting the bars, a stylus earned by one bar for tracing the design on said member, .a cutter on each bar for operatingon the roll, and means connecting the cutters and stylus for simultaneously lifting movement from said roll and member,

' 11. In a direct engraving machine, a frame Copies of this patent may be obtained for a stylus, and means i tal bar part, and a constructed operatively to support a printing roll, a design carrying member, a bar, a cutter pivotally connected to the latter, a stylus operatively connected to the bar, a lever arm fixed on the cutter, carried bythe stylus for engaging-withthe carrying member.

rack V and means lever arm and raising thecutter from the roll on lifting the stylus from the design 12. In a direct engraving machine, a frame constructed operatively to support a printing roll, a design carryingmember, a palr of rack bars, a stylus arm pivoted to one arm for operating over the membeiya cutter pivotally connected to the other bar for operating on the roll, lever arm carried part, and an upstanding arm carried by the stylus for relative movement to the bar part and engaging the latterfto depress the same on lifting the stylus to effect a lifting of the,

cutter. V

18. In an engraving machine, means for rotatably supporting a printing roll, a de sign carrying strip adapted to be secured at one end to the roll, means supporting the strip, and means for transferring the design from the strip tothe roll.

14E. In an engraving machine for printing rolls, a plural ty of cutters,'means' connecting the same whereby movement of one cutter in one direction will efliect' movement of the other cutter. in the opposite direction t0-, Ward or away from the first cutter, and a stylus connected to the first cutter, for imparting movement thereto.

15. In an engraving machine for printing rolls, a pivotally mounted cutter arm, a lever arm carried thereby and including a horizonpivotally mounted stylus having an, upstanding lever arm extending across the horizontal bar part of the first lever arm for depressing the'latter to raise thecutter on lifting the stylus, said stylus and cutter being relatively adjustable longitudinally of the horizontal bar part.

. In testimony whereof I have signed my name to thisspecification inthe presence of twosubscribing Witnesses.

WILLIAM H. HOPE Witnesses: 7 v

z ADA E. HAonirrY, -J. A. MILLER.

five cents each, by addressing the Commissioner of Fatenta,

Washington, D. G. i 

